Enter coupon code text fild not showing

I am using nopCommerce 1.80 and assigned an discount coupon code on a category/ Manufacturer  
and I have assigned this to selected category. But Enter coupon code text field not showing on checkout page.

Any help would be much appreciated and thanks in advance

Cheers

It can be your theme not properly showing it. What theme are you using? :)

prabirchoudhury wrote:
In admin under Settings > Shopping cart settings make sure the Show discount box setting is ticked.

Thanks for your reply , It works as showing the Coupon code but not other thing not working when we submit "apply coupon code" button it should calculate and show discounted price but not doing .

do I have to make any other change please?

Thanks in advance

Please find the screenshot